Quoting: fangm
This is just massively undervaluing Liligren. The pick is going the right way at most the Leafs would add a late pick to balance this out but NSH is getting two young pending RFAs and the Leafs are getting two older UFAs.
1. The age gap between all of these players is at max 3 years (Trenin and Liligren), and while Carrier and Trenin are both going to be UFA's, that still doesn't mean that they aren't the better players in this exchange. NSH sending a 2nd round pick here is the equivalent of both teams agreeing that NSH is, in all situations, getting the better players in the deal and that NSH is buying, not the other way around. If the players TOR has are that good, then just keep them and NSH will trade with other teams.
2. I'm not discounting the potential ceiling of Liligren, because its obvious he has a skill set that NSH would like, especially on the right side, but he is not better than Carrier is right now. Carrier is one NSH's top shutdown D right now and regularly gets some of the toughest assignments of the defensive pairs so that Josi and Fabbro/Barrie can be used offensively, and its the reason that he is likely to get traded. Liligren, while good, is just not that and that is primarily due to the fact that he has been sheltered in TOR's system. Carrier is playing better than Liligren, and doing it with more difficult assignments as well.
Carrier - https://twitter.com/ARHockeyStats/status/1759292363392872887/photo/1
Liligren - https://twitter.com/ARHockeyStats/status/1745565190203097158/photo/1